[Astromancer]

Try this idea, picture a world just begining to have superheros. I'd pick 1940 for the local year. Have a Superman-type show up in New York and then equivalents of Wonder Woman, Flash, Hawkman, the Human Torch, and Starman, show up elsewhere in North America. Have a Captain Marvel type show up in London, and have his twin sister be Irish (and Mary Marvel of course). Green Lantern could be an Australian. Assign the other DC and Atlas/Timely/Marvel golden age characters around the map (don't forget New Zealand. Hey since the Golden Age Aquaman is very powerful, would the Kiwis like him?)

Centrum, the Cabal, and Homeline would be looking to A)find out what happened, B) find out if they can repeat the effect, C) look for recruits.

Medium power level villains who got a serious pounding in their first outing might be interested in an easier way to make a good living. Similarly, not every super who is a basically good person would want to be a crime fighting vigilante. The possibilties for both drama and farce are grand. Note: Centrum might wish to attempt to distract both Homeline and the Cabal by aiding the Nazis.